Home / 149,445.10-206,228.01-81,460.59

Finding the Fourth Proportional to 149,445.10, 206,228.01 and 81,460.59

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Solution

The fourth proportional to 149,445.10, 206,228.01 and 81,460.59 is: 112,412.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,445.10 : 206,228.01 = 81,460.59 : x
  2. Step 2: Convert to fraction form
    149,445.10/206,228.01 = 81,460.59/x
  3. Step 3: Cross multiply
    149,445.10x = 206,228.01 × 81,460.59
  4. Step 4: Simplify right side
    149,445.10x = 16,799,455,369.13
  5. Step 5: Solve for x
    x = 16,799,455,369.13/149,445.10
  6. Step 6: Final answer
    x = 112,412.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.